import java.util.Scanner;

public class Customer {
    String name;
    int score;
    public int caiquan ;
    Scanner sc =new Scanner(System.in);

    public void showFirst(){
        do{
            System.out.println("请出拳：1：石头；2：剪刀；3：布");
             caiquan =sc.nextInt();
            switch (caiquan){
                case 1:
                    System.out.println("你出拳：石头");
                    break;
                    case 2:
                        System.out.println("你出拳：剪刀");
                        break;
                        case 3:
                            System.out.println("你出拳：布 ");
                            break;
                default:
                    System.out.println("你出错了");
            }
        }while(caiquan <0||caiquan>3);
    }


}
